Paper-making machine



Apr; 24, 1923. 1,453,090

l W. S. CRANDELL l PAPER MAKING MAcHINE'- Filed May 9, 1919 "7BlSheets-Shet l l l v ATroRNEYs- Apr. 24,1923#l Y. 1,453,090 W. S.CRANDELL PAPER MAKING MACHINE Filed May 9,' 1919 s sheets-sheet 2 llllimw N ToRNEYs PAPER MAKING MACHINE 3 Sheets-Sheet 5 Filed May 9, 1919INVENTOR Apr. Z4, 1923. l

' v w. s. CRANDELL Patented Apr. 24, 1923.

UNITED STATES PATE-r ortica.

WILLIS S. CRANDELL, OF ELSMERE, NEW YORK, ASSIGNOR TO A. P. W. PAPERCO., F

ALBANY, NEW YORK, A CORPORATION OF NEW'YORK.

PAPER-,MAKING MACHINE.

Application filed May 9, 1919. Serial No. 255,828.

To all fw lla-0m t may concern Be it known that I, ViLLis S. CRANDELL, acitizen of the United States, residing at .Elsmere, in the county ofAlbany and State of New York, have invented a certain new and usefulPaper-Making Machine, of which the following is a specification. i

The object of my invention has been to provide a paper making machine,which shall have among othery advantages, that of having a gearing fordriving thel wet press, the driers, and the calendersor other parts ofthe machine requiring to be driven synchronously, so that the speed `ofany one yor more of them may be exactly regulated to prevent breaking ofthe web of paper, and which mechanism shall be simpleiin the modeof'adjustment to bring the/speed of the various parts in unisonvandshall be dependable so as to reduce to a minimum the accidentswhichmight happen from such mechanism which would cause a` stoppage ofthe machine, and which mechanism shall require but comparatively littlepower lto1 drive it, and to such ends my invention consists in the papermaking machine hereinafter specified. i

In the accompanying drawings I have illustrated myV invention by itsapplication to that rtype 'of paper. making machine known as a cylindermachine and` bythe xbest Iform of mechanism known to me. My invention iscapable of use with any type of paper making machine and the drivingmechanism can be embodied in many different forms, and my invention is,therefore, lnot to be restricted to the form disclosed in thisapplication, but such form shally beregarded onlyvas typical of manypossibleembodiments. y

Fig. l is a plan view of the paper-making machine from the center to theleft-hand end thereof;

Fig. 2 is a vertical side elevationof the parts shownin plan in Fig. l;i' i Fig. la is aplan view of the machine from f the center to theright-hand end thereof;

Fig. 2a isa vertical side elevation of the parts shown in Fig. la;

Fig. 3 is a detailed view, partly in section, along the line 3-3 of Fig.la of the co-op- @rating parts comprising the gear adjusting means, thehand wheel and its shaft for manually adjusting the gear being shown inelevation;

section, showing the slidable mounting for one of the cone gears.

Paper making machines comprise broadly apparatus for forming the liberinto a wet sheet or web by depositing the ber from a body of water upona web-forming carrier, which apparatus is made in many different forms,press rolls which express from the web as much water as possible, driersl,for drying the paper, and calenders for compressing and inishing thepaper.

It is imperative that the rate of travel of the web through the pressrolls, the driers, and the calenders, should be the same, because if oneof them causes the web to travel, for instance, a little faster than theothers, this will gradually cause the web to be stretched until it willsooner or later break. In the illustrated embodiment of my invention, toaccomplish the said purposes, which is shown in the accompanyingdrawings the press l is at the right hand end of the machine, the driers2 are in the center, and the calenders 3 are at the left hand end. Iprovide the machine with a shaft 4 which may consist of a single pieceof shafting or of a number of pieces coupled or geared to-y gether sothat in effect they constitute` a single piece of shafting. This shaftmay be driven by any desired motor` and, in the present instance, I haveillustrated it as driven by an engine 5. The press comprises la pair ofsqueeze rolls 6, oneof which has a shaft 7 by which it may bev turned ordriven and a pair of press rolls 8, said two pairs of rolls being usedto express as much water from the newly formed web 9 as possible by theuse of mere pressure. The lowermost press roll is driven by a shaft A9cwhich receives its motion from a shaft l0 by means of a gear9a and apinion 10a. The

` shafts 7 and 9@ are in the presentinstance shown as having pulleys 7and 9b which are connected bya belt 1l. The shaft lOis mounted instationary bearings, and carries a friction cone l2 by which it isdriven. The cone l2 is driven by a cone 13 which is splined upon theshaft 4. The cone l2 is splined upon the shaft l0 so as to be slidablelongitudinally thereon and at the same time to be rotatable therewith.Slidingly j ournalled in the bearing of the shaft 10 and immediatelysurrounding the shaft, is a sleeve 12, having one end abutting the hubof the cone 12. Between the other end of the sleeve 12a and the gear 10afixed on the shaft 10 (Fig. 5), is a spring 12a. It is apparent from theconstruction thus described and shown that the cone 12 is yieldinglyforced outwardly always in contact with the cone 13, and that the cone12 is permitted the necessary sliding movement upon the shaft 1() tomaintain such contact in the various adjusted positions of the cone 13.In the present instance the cone 13 is mounted upon a sleeve 13, whichis, itself, splined upon the shaft 4L, and the said sleeve is engaged bya screw 13b as clearly shown in Figs. 3 and 4 which is mounted in astationary part, such as a pedestal 14, and the screw is turned by ahand-wheel 15, as by a worm on the shaft of the hand-wheel and aworm-wheel mounted on the screw. This mechanism enables the cone 13 tobe shifted along` the shaft et, the preferably yielding surfaces ormounting of at least one of the two cones permitting the consequentrelative change of the position thereof.y The shifting of the cone 13decreases or increases the radius of the mean circle or pitch line uponwhich it engages the large cone ,and consequently drives the large coneat a higher or lower rate of speed.

By similar driving mechanisms motion is adjustably transmitted from theshaft 4 to the first drier 2, to driers 2b near the centerr of theseries of driers, and to the calenders 3. i

By means of the mechanism, one embodiment of which I have described, thesurface speeds of the various rolls, driers, and calenders engaging theweb of paper can be made absolutely the same so that there willbe nocreeping of the paper, and the breakage of the paper can thereby beavoided. The mechanism being driven by what can be actually, or ineffect, a single shaft, and without the intervention of belts throughoutthat portion of the machine where the web is relatively dry and cannotstretch without breaking, is so simple that comparatively little poweris required to drive it. Such mechanism has also proven in actualpractice to be so reliable that the machine is very seldom required tobe stopped on account of anything getting out of order inkconnectionwith the mechanism. Thus the mechanism results in an increased output ofpaper by the machine, and in a material saving of the power required todrive it.

By the term directly connected appearing in the claims is meant such aconnection between the variable speed mechanism and the long shafts bywhich they are driven as to avoid the use of belts or similar forms ofdriving mechanisms.

I claim:

1. In a paper making machine, a plurality of machine elements adapted toperform successive operations in making a paper web, and an adjustablemechanism for driving said elements at the desired relative speeds, saidmechanism comprising a line shaft extending longitudinally of themachine, friction cones carried by said line shaft respectively adjacentsaid elements, means permitting each of said cones to slidelongitudinally relative to the line shaft as a whole, friction gearsrespectively engaging said cones, means for transmitting motion fromsaid gears to their respective machine elements, vand means'foradjusting the longitudinal position of each of said cones relative tothe line shaft as a whole, to vary the speed ratio between the lineshaft and corresponding machine elements.

2. The combination set forth' in claim 1, wherein said friction gearsare mounted upon intermediate shafts extending transversely between themachine and said line shaft.

3. In a paper making machine, a plurality of machine elements adapted toperform successive operations in making a paper web, an adjustablemechanism` for driving said elements at the desired relative speeds,said mechanism comprising aline shaft eX- tending longitudinally of themachine,friction gears carried by said line shaft re-r spectivelyvadjacent said elements, `means permitting each of said cones to slidelongitudinally relative to the shaft asa whole,

friction gears respectively engaging said cones, means for transmittingmotion from the gears to their respective machine. elements, and a screwadjusting device for shifting the longitudinal position of each of saidcones relative to the line shaft asa whole to vary the speed ratiobetween the line shaft and the corresponding machine elements.

In testimony that Iclaim the foregoing, I have hereunto set my hand this24th day of April, 1919.

WILLIS s. CRANDELLQ

